01/01/1992 10300

HIGHWAY DRAFTER

DEFINITION: This is technical work in the preparation of a wide variety of highway plans, maps, and similar drawings.

An employee in this class performs technical duties which follow prescribed methods and procedures, and involve the application of basic technical skills and techniques for the completion of a wide variety of drafting and detailing assignments with technical and professional guidance from higher level technical employees. Work is performed using Computer Aided Drafting and Design (CADD) instruments or conventional drafting techniques and methods for full range drafting and detailing on highway involves plan sheets and involves preparing and checking simple mathematical calculations and reducing field notes preparatory to drafting. Employee may function as a lead worker over lower level technicians preparing simple tracings or straight-line drawings. Work is performed with general instructions received in the form of rough notes or incomplete sketches. As assignments increase in difficulty, more detailed instructions may be received from a higher level technician, designer, or technical supervisor who reviews work upon completion for accuracy and adherence to established standards.

EXAMPLES OF WORK: Assists in the preparation of highway plans from field survey notes. Performs all drafting and detailing work associated with the development and preparation of highway plans from preliminary sketches to final detailed working plans.

Prepares portions of plans for less complex highway projects such as resurfacing, restoration, and rehabilitation, lane widening and safety and intersection improvement projects.

Performs and checks less complex computations; assists in the development of grade lines and computes gradients; computes earthwork and material quantities; and plots roadway and channel templates on cross sections with guidance from a higher level technician or professional.

Prepares a variety of maps of the entire state which include such items as railways, bus routes, truck routes, and electric and gas companies' charted territories with guidance from a higher level technician or professional.

Prepares all plans from preliminary sketches to final working plans for highway construction, including right-of-way maps, centerline drawings, profiles and topography, cross sections, drainage, and final construction plans with guidance from a higher level technician or professional.

Prepares soils maps reflecting geographical problem areas, deed plot drawings, viewer plans, and other drawings and charts with guidance from a high level technician or professional.

Applies and interprets survey notes, aerial photographs, and engineering data.

May participate in field trips with project engineers to assist in making measurements, notes, and sketches.

Performs related work as required.

REQUIRED KNOWLEDGES, SKILLS, AND ABILITIES: Knowledge of CADD methods, instruments, materials, and techniques used in highway design.

Knowledge of conventional technical drafting principles and practices in highway design.

Knowledge of the basic principles and practices applied in the design of highway projects.

Knowledge of surveying principles.

Knowledge of plane geometry, algebra, and trigonometry.

Knowledge of departmental drafting standards.

Knowledge of the symbols used in drafting.

Skill in the use of drafting instruments and materials.

Skill in the development of final plans from engineering instructions and calculations.

Ability to read and interpret maps, plans, aerial photographs, blueprints, survey notes, and other records.

Ability to care for drafting instruments and equipment.

Ability to establish and maintain effective working relationships with associates.

Ability to letter in freehand and with a mechanical lettering set.

MINIMUM EXPERIENCE AND TRAINING: One year as an Engineering Technician.

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Two years of experience in a variety of drafting assignments, one of which shall have been in highway drafting, including six months CADD experience or training, and graduation from high school.

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One year of experience in highway drafting and detailing assignments including six months of CADD experience or training and an Associate's Degree in civil engineering, drafting, or design technology.

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Any equivalent combination of experience and/or training.